PROCESS FOR CARRYING OUT MICROBIOLOGICAL FERMENTATIONS IN A DEVICE COMPRISING A FIXED SYSTEM OF AN OPEN CELL FOAM AS WELL AS A DEVICE FOR CARRYING OUT SUCH PROCESSES

摘要

A B S T A C TThe present invention relates to a process for carrying out micro-biological fermentations, wherein a nutrient liquid and, if necessary,gases are passed through a fixed system of open cell polyurethane foamunits, which system comprises at least two adjacent foam layers eachhaving a flat main surface and an embossed main surface, wherein inthe subsequent layers said embossed surface of a foam layer ispositioned against the flat surface of the adjacent foam layer.* * * * *